package com.linkai.多线程._05_State;

/**
 * @Description: 测试线程优先级
 *                需要先设置线程优先级，然后再启动线程
 * @Author: 林凯
 * @Date: 2021/10/19 21:27
 */
public class TestPriority {
    public static void main(String[] args) {
        // 主线程默认优先级为 5
        System.out.println(Thread.currentThread().getName() + "--->" +
                Thread.currentThread().getPriority());

        MyPriority myPriority = new MyPriority();
        Thread t1 = new Thread(myPriority);
        Thread t2 = new Thread(myPriority);
        Thread t3 = new Thread(myPriority);
        Thread t4 = new Thread(myPriority);
        Thread t5 = new Thread(myPriority);
        Thread t6 = new Thread(myPriority);

        //先设置优先级，再启动
        t1.start();
        t2.setPriority(1);
        t2.start();
        t3.setPriority(4);
        t3.start();

        t4.setPriority(Thread.MAX_PRIORITY);    // 10
        t4.start();

//        t5.setPriority(-1);
//        t5.start();
//
//        t6.setPriority(11);
//        t6.start();


    }

}

class MyPriority implements Runnable {

    @Override
    public void run() {
        System.out.println(Thread.currentThread().getName() + "---> "
        + Thread.currentThread().getPriority());
    }
}
